It might be hard to believe, but “The Devil Wears Prada”—the ultimate terrifying insight into the world of fashion magazine—turns 10 June 30th. The movie, which brought in over $326 million worldwide, has become an iconic classic for the millennial generation. “The Devil Wears Prada” became a modern-day “Working Girl” for young women who could relate to the idea of losing your identity to a job.

In honor of the film’s 10th anniversary, here are 10 of our favorite life lessons from “The Devil Wears Prada.”

Never show up to meetings unprepared. The one way to show your boss how little you care about your position is by not being present and prepared for important meetings.

Always know the important people in your field. Even if you just started the job – you always need to know the important people are in your workplace. Hold the elevator, say hello, and smile when you interact with them.

When things get hard, complaining gets you nowhere. No matter how draining, taxing or stressful your job may be it is never worth it to complain. Stick with it anyways! Work around the challenges and figure out a way to push through.

First impressions truly are everything. The primary judge should be you. Always put your best foot forward because you’re worth it and you never know who’s looking at you.

Don’t make excuses. Your boss doesn’t have time to worry about why you couldn’t do something. Stay focused on your task and don’t blame outside forces for your shortcomings.

Be proud of – and confident in – who you are. Your employer hired you for a reason. Make sure you showcase the best skills you have.

Men are not the only ones who can hold influential positions in the workplace. Women stand up for your space in the workplace!

You have to draw a line between your life and your work. Finding the perfect balance between work and home life is important for your relationships, mental health, and sanity. You will be able to achieve more at work if you know when it’s time to say “no.”

An amazing job isn’t always going to make you happy. This can be hard to accept, but the dream job you thought was going to be perfect may not be. You have to know when it’s time to walk away.

The Devil Wears Prada tackles life’s problems with flair and comedy, but still gives examples of lessons we can apply to our day to day lives. Becoming a strong influencer at your place of employment through strong work-ethic and dedication will help you become the best version of yourself.